Improvement in bearings for sheaves and journals



v G. H. WHITE. Bearing for Sheaves and Journals. No. '197,439.

Patented Nov. 20, 1877.

UNITED STATES'PATENT OFFICE.

CHARLES H. WHITE, OF NEW YORK, N. Y.

IMPROVEMENT IN BEARINGS FOR SHEAVES AND JOURNALS.

Specification forming part of Letters Patent No. 197,439, dated November20, 1877 application filed October-24, 1877.

4 To all whom it may concern:

Be it known that I, CHARLES HARCOURT WHITE, of the city and State of NewYork, have invented a new and useful Improvement in Bearingsfor Sheavesand Journals, of which the following is a description, reference beinghad to the accompanying drawing, forming part of this specification.

This invention, although here shown as applied to the hangers of slidingdoors or gates, regardless of whether the same be used in connectionwith doors or gates supported from above or below, is equally applicableto other contrivances or devices in which sheaves are used to sustainthe weight, likewise to sheaves of pulley-blocks, and other sheaves andpulleys having to sustain a one-sided weight or pressure, which causesunequal wear of their bearings.

The invention consists in a reversible and removable sleeve-bearing ofnovel construction for the sheave or pulley, in combination with thecenter pin or bolt within said sleeve, and the frame or casin gcontaining said sheave or pulley, whereby a secure lock or hold isobtained for said sleeve when set, with every convenience for turning itto meet lateral wear, and for removing it, or the pulley or sheaveworking on it, without dismembering the frame or case.

Figure 1 of the accompanying drawing represents a hanger plate or framefor a sliding door, with a running or supporting sheave therein for saiddoor, and having my invention applied. Fig. 2 is a vertical centralsection of the same, in part, in a plane at right angles to Fig. 1. Fig.3 is a view, in perspective, of the sleeve or bushing on which thesheave turns.

A is one of the hangers of a sliding door or gate, or frame or platethereof, forming the casing within which the sheave-B, used to carry thedoor, runs. This frame is made to straddle the sheave, and has oppositecheeks, b c, at its sheave or pulley end.

0 is the pin or bolt which forms the pintle of the sheave, and aroundwhich the sleeve or bushing D, on which the sheave turns, is fitted.This sleeve, through which and the cheeks b c of the frame A the bolt 0passes, it is preferred to make of what is termed anti-friction metal,and its length is such as to prevent any binding or tightening of thesheave in its running space within the hanger; and said sleeve, whichenters freely through an aperture, d, in the cheek c of the hanger, isconstructed to enter a bearing-recess, e, in the opposite cheek b,whereby thebolt G is relieved of weight or friction consequent onlateral pull or pressure of or on the sleeve.

Furthermore, said sleeve D, fitted as described, is not only madereadily removable on withdrawing the bolt O and the sheave B, likewisemade readily removable without dismemberin g the casing or framing A,but said sleeve D is provided with a locking head or projection, f,which, as said sleeve is fitted to its place, is made to engageexternally with one or more locking-recesses, 9, formed by the ribs 6,or otherwise, in the cheeks o of the hanger A, or which, having one ormore locking-recesses in it, is made to engage with one or morecorresponding projections on the exterior of the cheek c of the frame asstops. In this way or by these means the sleeve D may, by simply andslightly withdrawing it, so as to free the engagement of its head orprojection f with the cheek c, be turned to present different sides ofitsay four, more or lessin succession, to the sheave or pulley on thatside of the latter on which the weight or pressure is brought to bear,and said sleeve afterward be returned and positively stopped or lockedat its set within the frame A.

I claim- The combination, with the frame A and pin or bolt 0, of thereversible and removable sleeve-bearin g D, provided with a lockingheador projection on one of its ends, engaging with a projection or recesson the exterior of the frame, substantially as and for the purposeherein described.

CHARLES HAROOURT WHITE.

Witnesses FRED. HAYNES, EDWARD B. SHERRY.

